Extending a ring circuit
 

A friend of mine recently had some new sockets installed in a
conservatory. These were fed from a fused spur of the ring mains. They
are in 2.5mm on a radial. Is this OK.

Extending a ring circuit
 

In article .com,
wrote:
A friend of mine recently had some new sockets installed in a
conservatory. These were fed from a fused spur of the ring mains. They
are in 2.5mm on a radial. Is this OK.

Yes - if fed via an FCU you may have as many as you wish. And 1.5mm TW&E
would almost certainly have been suitable.

--
*He who laughs last has just realised the joke.

Dave Plowman London SW
To e-mail, change noise into sound.

Extending a ring circuit
 

"Dave Plowman (News)" wrote in message
...
In article .com,
wrote:
A friend of mine recently had some new sockets installed in a
conservatory. These were fed from a fused spur of the ring mains. They
are in 2.5mm on a radial. Is this OK.

Yes - if fed via an FCU you may have as many as you wish. And 1.5mm TW&E
would almost certainly have been suitable.

Don't they have to have a 30mA trip to met current regs?
It may be met by an existing trip on the ring but no information was
provided.

Extending a ring circuit
 

In article ,
dennis@home wrote:

"Dave Plowman (News)" wrote in message
...
In article .com,
wrote:
A friend of mine recently had some new sockets installed in a
conservatory. These were fed from a fused spur of the ring mains.
They are in 2.5mm on a radial. Is this OK.

Yes - if fed via an FCU you may have as many as you wish. And 1.5mm
TW&E would almost certainly have been suitable.

Don't they have to have a 30mA trip to met current regs? It may be met
by an existing trip on the ring but no information was provided.

I suppose if the conservatory sockets are likely to feed things used
outdoors they should be RCD protected. You can get suitable ones which
replace an FCU if the ring isn't already protected.

--
*Elephants are the only mammals that can't jump *

Dave Plowman London SW
To e-mail, change noise into sound.

Extending a ring circuit
 

wrote:
A friend of mine recently had some new sockets installed in a
conservatory. These were fed from a fused spur of the ring mains. They
are in 2.5mm on a radial. Is this OK.

OK yes, although it limits the total combined load on all the new
sockets to 13A. They ought to have RCD protection, but that may be
provided for the original circuit anyway.

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

Extending a ring circuit
 

On Thu, 2 Aug 2007 15:22:10 +0100, "dennis@home"
mused:


"Dave Plowman (News)" wrote in message
...
In article .com,
wrote:
A friend of mine recently had some new sockets installed in a
conservatory. These were fed from a fused spur of the ring mains. They
are in 2.5mm on a radial. Is this OK.

Yes - if fed via an FCU you may have as many as you wish. And 1.5mm TW&E
would almost certainly have been suitable.

Don't they have to have a 30mA trip to met current regs?

Nope.

IT may be a good idea to have an RCD to cover those sockets if it's
likely they will be used to power equipment outdoors, but if there is
an outside socket by the conservatory doors then only this socket
would need to be RCD protected, IMO.

I added the IMO as this could be argued both ways by everyone as the
the regs are open to interpretation.

It may be met by an existing trip on the ring but no information was
provided.

ITYM RCD, rather than trip.
--
Regards,
Stuart.